Crater Flash

A flash of light emits from you as a bolt of lightning strikes around you in an instant. Any creature within 5 ft. of you immeditaly is blinded and deafened for 1 round, those creatures then most make a Dexterity Saving Throw. A creature takes 10d10 Lightning damage if they fail, half as much if they succeed. Any creature within 20 ft. must also make a dexterity saving. A creature suffers 5d10 lightning damage if they fail, half as much damage if they succeed. The area around becomes charged with electrical energy, at the beggining of your next turn another bolt strikes the same location. All creatures within 15 ft. must make a dexterity saving throw. Any creatures within the area take 5d8 lightning damage if they fail.

(This spell does not deal self damage.)